Blame - drivers/infiniband/hw/efa/efa.h - hafnium/third_party/linux.git

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David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame^]	1	/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
				2	/*
				3	* Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All rights reserved.
				4	*/
				5
				6	#ifndef _EFA_H_
				7	#define _EFA_H_
				8
				9	#include <linux/bitops.h>
				10	#include <linux/interrupt.h>
				11	#include <linux/pci.h>
				12
				13	#include <rdma/efa-abi.h>
				14	#include <rdma/ib_verbs.h>
				15
				16	#include "efa_com_cmd.h"
				17
				18	#define DRV_MODULE_NAME "efa"
				19	#define DEVICE_NAME "Elastic Fabric Adapter (EFA)"
				20
				21	#define EFA_IRQNAME_SIZE 40
				22
				23	/* 1 for AENQ + ADMIN */
				24	#define EFA_NUM_MSIX_VEC 1
				25	#define EFA_MGMNT_MSIX_VEC_IDX 0
				26
				27	struct efa_irq {
				28	irq_handler_t handler;
				29	void *data;
				30	int cpu;
				31	u32 vector;
				32	cpumask_t affinity_hint_mask;
				33	char name[EFA_IRQNAME_SIZE];
				34	};
				35
				36	struct efa_sw_stats {
				37	atomic64_t alloc_pd_err;
				38	atomic64_t create_qp_err;
				39	atomic64_t create_cq_err;
				40	atomic64_t reg_mr_err;
				41	atomic64_t alloc_ucontext_err;
				42	atomic64_t create_ah_err;
				43	};
				44
				45	/* Don't use anything other than atomic64 */
				46	struct efa_stats {
				47	struct efa_sw_stats sw_stats;
				48	atomic64_t keep_alive_rcvd;
				49	};
				50
				51	struct efa_dev {
				52	struct ib_device ibdev;
				53	struct efa_com_dev edev;
				54	struct pci_dev *pdev;
				55	struct efa_com_get_device_attr_result dev_attr;
				56
				57	u64 reg_bar_addr;
				58	u64 reg_bar_len;
				59	u64 mem_bar_addr;
				60	u64 mem_bar_len;
				61	u64 db_bar_addr;
				62	u64 db_bar_len;
				63	u8 addr[EFA_GID_SIZE];
				64	u32 mtu;
				65
				66	int admin_msix_vector_idx;
				67	struct efa_irq admin_irq;
				68
				69	struct efa_stats stats;
				70	};
				71
				72	struct efa_ucontext {
				73	struct ib_ucontext ibucontext;
				74	struct xarray mmap_xa;
				75	u32 mmap_xa_page;
				76	u16 uarn;
				77	};
				78
				79	struct efa_pd {
				80	struct ib_pd ibpd;
				81	u16 pdn;
				82	};
				83
				84	struct efa_mr {
				85	struct ib_mr ibmr;
				86	struct ib_umem *umem;
				87	};
				88
				89	struct efa_cq {
				90	struct ib_cq ibcq;
				91	struct efa_ucontext *ucontext;
				92	dma_addr_t dma_addr;
				93	void *cpu_addr;
				94	size_t size;
				95	u16 cq_idx;
				96	};
				97
				98	struct efa_qp {
				99	struct ib_qp ibqp;
				100	dma_addr_t rq_dma_addr;
				101	void *rq_cpu_addr;
				102	size_t rq_size;
				103	enum ib_qp_state state;
				104	u32 qp_handle;
				105	u32 max_send_wr;
				106	u32 max_recv_wr;
				107	u32 max_send_sge;
				108	u32 max_recv_sge;
				109	u32 max_inline_data;
				110	};
				111
				112	struct efa_ah {
				113	struct ib_ah ibah;
				114	u16 ah;
				115	/* dest_addr */
				116	u8 id[EFA_GID_SIZE];
				117	};
				118
				119	int efa_query_device(struct ib_device *ibdev,
				120	struct ib_device_attr *props,
				121	struct ib_udata *udata);
				122	int efa_query_port(struct ib_device *ibdev, u8 port,
				123	struct ib_port_attr *props);
				124	int efa_query_qp(struct ib_qp ibqp, struct ib_qp_attr qp_attr,
				125	int qp_attr_mask,
				126	struct ib_qp_init_attr *qp_init_attr);
				127	int efa_query_gid(struct ib_device *ibdev, u8 port, int index,
				128	union ib_gid *gid);
				129	int efa_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
				130	u16 *pkey);
				131	int efa_alloc_pd(struct ib_pd ibpd, struct ib_udata udata);
				132	void efa_dealloc_pd(struct ib_pd ibpd, struct ib_udata udata);
				133	int efa_destroy_qp(struct ib_qp ibqp, struct ib_udata udata);
				134	struct ib_qp efa_create_qp(struct ib_pd ibpd,
				135	struct ib_qp_init_attr *init_attr,
				136	struct ib_udata *udata);
				137	void efa_destroy_cq(struct ib_cq ibcq, struct ib_udata udata);
				138	int efa_create_cq(struct ib_cq ibcq, const struct ib_cq_init_attr attr,
				139	struct ib_udata *udata);
				140	struct ib_mr efa_reg_mr(struct ib_pd ibpd, u64 start, u64 length,
				141	u64 virt_addr, int access_flags,
				142	struct ib_udata *udata);
				143	int efa_dereg_mr(struct ib_mr ibmr, struct ib_udata udata);
				144	int efa_get_port_immutable(struct ib_device *ibdev, u8 port_num,
				145	struct ib_port_immutable *immutable);
				146	int efa_alloc_ucontext(struct ib_ucontext ibucontext, struct ib_udata udata);
				147	void efa_dealloc_ucontext(struct ib_ucontext *ibucontext);
				148	int efa_mmap(struct ib_ucontext *ibucontext,
				149	struct vm_area_struct *vma);
				150	int efa_create_ah(struct ib_ah *ibah,
				151	struct rdma_ah_attr *ah_attr,
				152	u32 flags,
				153	struct ib_udata *udata);
				154	void efa_destroy_ah(struct ib_ah *ibah, u32 flags);
				155	int efa_modify_qp(struct ib_qp ibqp, struct ib_qp_attr qp_attr,
				156	int qp_attr_mask, struct ib_udata *udata);
				157	enum rdma_link_layer efa_port_link_layer(struct ib_device *ibdev,
				158	u8 port_num);
				159	struct rdma_hw_stats efa_alloc_hw_stats(struct ib_device ibdev, u8 port_num);
				160	int efa_get_hw_stats(struct ib_device ibdev, struct rdma_hw_stats stats,
				161	u8 port_num, int index);
				162
				163	#endif /* _EFA_H_ */